Profile: Opto 22 is a manufacturer of controllers, I/O, solid-state relays, and software products for industrial automation, remote monitoring, data acquisition, & process control systems. Our product line includes SNAP PAC system, IO4AB, PC-based I/O, solid state relays and OptoGear. Our SNAP PAC system is an integrated system of hardware and software for industrial control, remote monitoring, and data acquisition applications. The SNAP PAC system makes it simpler to understand, select, buy, and apply an automation system. Our solid state relays are rugged 120/240-volt AC power series to the small-footprint MP series, designed for mounting on printed circuit boards.